The National Park Service's Rivers, Trails, and Conservation Assistance program is currently working with doctors, healthcare providers, and NPS managers as part of the Healthy Parks Healthy People program. Doctors are prescribing park or nature prescriptions to patients so they can improve their health, connect with the outdoors, and become park stewards. Here's an interesting video from the NPS on this new program:
So what are you doing sitting around watching this video for anyway?! Time to get out and hike!